CN104075250A - Light distribution structure and LED lamp thereof - Google Patents
Light distribution structure and LED lamp thereof Download PDFInfo
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- CN104075250A CN104075250A CN201310110080.1A CN201310110080A CN104075250A CN 104075250 A CN104075250 A CN 104075250A CN 201310110080 A CN201310110080 A CN 201310110080A CN 104075250 A CN104075250 A CN 104075250A
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- light
- lens
- reflector assembly
- lens subassembly
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- 238000001746 injection moulding Methods 0.000 claims abstract description 4
- 238000005286 illumination Methods 0.000 claims description 18
- 239000004033 plastic Substances 0.000 claims description 13
- 229920003023 plastic Polymers 0.000 claims description 13
- 239000004417 polycarbonate Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 5
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 5
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 5
- XECAHXYUAAWDEL-UHFFFAOYSA-N Acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims description 3
- 229920000122 Acrylonitrile butadiene styrene Polymers 0.000 claims description 3
- 238000005269 aluminizing Methods 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- 230000003287 optical Effects 0.000 description 6
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-L Sulphite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000005605 benzo group Chemical group 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
A light distribution structure comprises a reflector component and a lens component installed at one end of the reflector component. The lens component comprises a first side face, a second side face and a plurality of lenses located on the first side face and the second side face. The reflector component is integrally designed by injection molding and mould opening and reflects injected light into the collimated and parallel light which is transmitted to the lenses on the first side face, and the light is subjected to light distribution processing through the lenses on the second side face. The invention further provides an LED lamp applying the above light distribution structure. By the arrangement of the light distribution structure, uniformity of light of a lighted surface is improved, light spots uniform in color are formed, and light distribution demands of the LED lamp are met.
Description
Technical field
The present invention relates to lighting field, relate in particular to a kind of light distribution structure and apply the LED(light emitting diode of described light distribution structure, Light-Emitting Diode) light fixture.
Background technology
LED is as the semiconductor devices that can be luminous energy by electric energy conversion, the advantage such as high with its efficiency, energy consumption is low, the life-span is long is widely used in various lightings, as search for lamp, operating lamp, these light fixtures have become indispensable illumination utensil in people's life, work.Yet because LED itself belongs to youth uncle type light source, its luminous intensity is that both sides are lower mostly, center is higher, so LED generally cannot directly apply to lighting field.Therefore, LED light source is carried out to optics luminous intensity distribution and just seem particularly important.Mostly there is following shortcoming in the light distribution structure that at present, on market, LED light source is carried out to luminous intensity distribution: 1. the uniformity of illuminance of face to be illuminated is lower; 2. the obscure boundary of illumination hot spot is clear, and energy disperses; 3. the light sending easily produces dispersion, and irregular colour is even.
Summary of the invention
For the problems referred to above, the object of the present invention is to provide a kind of light distribution structure, it can improve the uniformity of illuminance of face to be illuminated, and can form sharpness of border, the color hot spot that throws light on uniformly.
The present invention also provides a kind of LED light fixture of applying above-mentioned light distribution structure.
In order to solve the problems of the technologies described above, the invention provides a kind of light distribution structure, described light distribution structure comprises reflector assembly and is installed on the lens subassembly of described reflector assembly one end, described lens subassembly comprises the first side, the second side and be positioned at described the first side and described the second side on some lens, described reflector assembly adopts the one-body molded design of injection moulding die sinking, and be collimation parallel rays by the light reflection of injecting, described collimate in parallel light transmission is to some lens of described the first side, and by the some lens on described the second side so that light is carried out to luminous intensity distribution processing.
Wherein, described reflector assembly is collimating reflectors, and it is made by polycarbonate plastic or ABS plastic, and the reflecting surface of this reflector assembly is processed the light to inject by aluminizing.
Wherein, described reflector assembly comprises the first openend and the second openend, the bore of described the first openend is less than the bore of described the second openend, described lens subassembly is positioned at described the second open end, for reflecting and reflect the light that described reflector assembly reflects and the light of directly injecting.
Wherein, the bore of described the first openend is 8 millimeters, 28.3 millimeters of the bores of described the second openend, and the height of this reflector assembly is 23 millimeters, the inner surface integral body of this reflector assembly 40 is parabola.
Wherein, described lens subassembly integral body is cylindrical shape, and it is made by one-body molded design by optical-grade plastic or glass.
Wherein, described lens subassembly integral body is cylindrical shape, and it is made by one-body molded design by PMMA plastics, PC plastics or glass.
Wherein, described lens subassembly is any one in regular hexagon compound eye coupled lens or two-face fly-eye lens.
Wherein, described lens are orthohexagonal spherical surface hill structure, and are arranged on described the first side and the second side according to regular hexagon, the light of injecting are formed to the regular hexagon illumination hot spot of uniform-illumination.
Wherein, the height of described lens subassembly is 10 millimeters, the diameter of its circular cross section is 30 millimeters, and the length of side that is arranged in the orthohexagonal lens on described the first side and described the second side according to regular hexagon is 1.732 millimeters, and the spherical radius of each lens is 5 millimeters.
The present invention also provides a kind of LED light fixture, comprise light source, this LED light fixture also comprises above-mentioned light distribution structure, and described light source is installed on described reflector assembly with respect to the other end of described lens subassembly, and the light that this light source sends exposes to described mirror assembly and lens subassembly.
In the LED light fixture that the invention process provides, described reflector assembly and lens subassembly have formed the secondary light-distribution structure of this LED light fixture, this reflector assembly reflects the light that described light source sends, and form parallel rays outgoing to described lens subassembly, light overlapping illumination on face to be illuminated that this lens subassembly penetrates, improve the uniformity of illuminance of face to be illuminated, and formed the uniform hot spot of color, met the light distribution requirements of described LED light fixture.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the LED light fixture that provides of the embodiment of the present invention.
Fig. 2 is the schematic perspective view of the reflector assembly shown in Fig. 1.
Fig. 3 is the floor map of the reflector assembly shown in Fig. 2.
Fig. 4 is the schematic perspective view of the lens subassembly shown in Fig. 1.
Fig. 5 is the floor map of facing of the lens subassembly shown in Fig. 4.
Fig. 6 is the schematic top plan view of the lens subassembly shown in Fig. 4.
Fig. 7 is that light is through the light path schematic diagram of reflector assembly reflection and lens subassembly.
The LED light fixture that Fig. 8 the invention process provides is at the illumination figure at 2 meters of.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, embodiment of the present invention provides a kind of LED light fixture 100, and it can be the lightings such as search lamp, operating lamp.In embodiments of the present invention, described LED light fixture 100 comprises light source 20, reflector assembly 40 and lens subassembly 50, and described reflector assembly 40 and lens subassembly 50 have formed the light distribution structure of this LED light fixture 100, can form uniform hot spot at face to be illuminated.Described light source 20 can need to be launched the light of respective color, brightness according to illumination, the light that the described light source 20 of described reflector assembly 40 reflection sends, described lens subassembly 50 optical treatment (as reflection, refraction) from as described in the light of reflector assembly 40, thereby by light shaping dispersion equably, thereby form uniform hot spot.
In embodiments of the present invention, described LED light fixture 100 also comprises the assemblies such as lamp casing, heat sink, driven unit, rectification circuit, lampshade, described lamp casing is as the main body of this LED structure 100, it is for holding the assemblies such as described light source 20, reflector assembly 40, lens subassembly 50, heat sink, driven unit, rectification circuit in the inner, described lampshade removably covers on this lamp casing, and then by described light source 20, reflector assembly 40, lens subassembly 50, the component package such as heat sink, driven unit, rectification circuit are in described lamp casing.
In embodiments of the present invention, described light source 20 is LED chip, and it is upper that it can be installed on described heat sink (as, aluminium base) by modes such as surface mount, welding, and the heat conduction that this heat sink produces in the time of can be by this light source 20 work sheds.The luminous site of described light source 20 is in described reflector assembly 40, and its light sending is injected a side of described lens subassembly 50 after reflecting via this reflector assembly 40.
See also Fig. 2 and Fig. 3, described reflector assembly 40 can be collimating reflectors, and it can be by ABS(alkyl benzo sulfonate, acrylonitrile-butadiene-styrene (ABS)) plastics or PC(polycarbonate, Merlon) plastic or other material makes.This reflector assembly 40 can adopt the one-body molded design of injection moulding die sinking, its inner surface 41 can be processed the light sending to reflect described light source 20 by aluminizing as reflecting surface, and makes the light (being that outgoing is to the light of described lens subassembly 50) after reflection become collimation parallel rays.In embodiments of the present invention, described reflector assembly 40 comprises the first openend 42 and the second openend 44, and the bore of this first openend 42 is less than the bore of described the second openend 44.Described light source 20 is positioned at the first openend 42 places of this reflector assembly 40, and described lens subassembly 50 is positioned at described the second openend 44 places, the light of directly injecting for reflecting and reflect light that described reflector assembly 40 reflects and described light source 20.
As one embodiment of the present of invention, wherein one group of design parameter of described reflector assembly 40 can be: the bore of described the first openend is approximately 8 millimeters, the bore of described the second openend 44 (i.e. the light-emitting window diameter of this reflector assembly 40) is approximately 28.3 millimeters, the height of this reflector assembly 40 is approximately 23 millimeters, inner surface 41 integral body of this reflector assembly 40 are roughly parabola, its bus equation is y2=8x, makes the light after reflection become collimation directional light.Be understandable that; above-mentioned design parameter is only these LED structure 100 one of them specific embodiments; the application is not restricted to above-mentioned design parameter; the size of this reflector assembly 40 designs according to physical dimension; as long as the design parameter that meets this optical property all, within the application's protection domain, does not repeat them here.
See also Fig. 4 to Fig. 7, described lens subassembly 50 is roughly cylindrical shape, and it can be by PMMA(polymethylmethacrylate, polymethyl methacrylate) optical-grade plastic such as plastics, PC plastics or glass makes by one-body molded design.In embodiments of the present invention, this lens subassembly 50 is installed on the second openend 44 places of described reflector assembly 40, the light of directly injecting for reflecting and reflect light that described reflector assembly 40 reflects and described light source 20.Described lens subassembly 50 can be regular hexagon compound eye coupled lens or two-face fly-eye lens, it comprises the first side 52, second side 53 corresponding with this first side 52 and is arranged in the some lens 54 on described the first side 52 and the second side 53, these lens 54 are orthohexagonal spherical surface hill structure, and are arranged on described the first side 52 and the second side 53 according to regular hexagon.Described some lens 54 optical treatment (as reflection, refraction) from as described in the light of reflector assembly 40, thereby by light shaping and disperse equably, thereby form uniform hot spot.
Be specially, the light that described light source 20 sends exposes to described reflector assembly 40, these light of inner surface 41 reflection of this reflector assembly 40 (light as shown in Figure 7 1. with light 2.), make light ray parallel after this reflection in optical axis outgoing to the first side 52 of described lens subassembly 50 on, at 52 places, the first side, there is to reflect and focus on the focus place (being the central spot of each spherical lens 54 on described the second side 53) of described the second side 53 in this light, the light of the different space frequency of described light source 20 can be imaged in respectively to diverse location, make the number of total imaging point equal the number of described spherical lens 54.So, the light that each spherical lens 54 penetrates keep transmission route unchangeably through described the second side 53(light as shown in Figure 7 1. with light 2.), and overlapping illumination on face to be illuminated, this light transmission process is equivalent to change single source 20 illuminations into a plurality of LED light source mixed lightings, thereby form the regular hexagon illumination hot spot of uniform-illumination within the specific limits, and improved color homogeneity.See also Fig. 8, the LED light fixture 100 that Fig. 8 the invention process provides is at the illumination figure at 2 meters of, it represents the luminous flux of accepting in the object face to be illuminated unit interval, as shown in Figure 8, the hot spot forming on face to be illuminated is regular hexagon, uniformity of illuminance is about 90%, and the secondary light-distribution structure that this reflector assembly 40 and lens subassembly 50 form has met the luminous intensity distribution demand of described LED light fixture 100.
As one embodiment of the present of invention, one of design parameter of described lens subassembly 50 can be: the height of this columned lens subassembly 50 is approximately 10 millimeters, the diameter of its circular cross section is approximately 30 millimeters, the length of side that is arranged in the orthohexagonal spherical lens 54 on described the first side 52 and the second side 53 according to regular hexagon is approximately 1.732 millimeters, and the spherical radius of each spherical lens 54 is approximately 5 millimeters.Based on above-mentioned design, this lens subassembly 50 can change single source 20 illuminations into a plurality of LED light source mixed lightings, thereby forms the regular hexagon hot spot of uniform-illumination in certain limit, and has improved color homogeneity.Be understandable that; above-mentioned design parameter is only these lens subassembly 50 one of them specific embodiments; the application is not restricted to above-mentioned design parameter; the size of this lens subassembly 50 designs according to physical dimension; as long as the design parameter that meets this optical property all, within the application's protection domain, does not repeat them here.
See also Fig. 1 to Fig. 6, during use, described light source 20 be mounted on described heat sink (as, aluminium base) on, and through the first openend 42 of described reflector assembly 40, after energising, this light source 20 need to send the light of respective color, brightness according to illumination.The light that described light source 20 sends exposes on the inner surface 41 of described reflector assembly 40, this inner surface 41 these light of reflection (light as shown in Figure 7 1. with light 2.), light ray parallel after reflection is exposed in optical axis direction on the first side 52 of described lens subassembly 50, there is to reflect and focus on the focus place (i.e. the central spot of each spherical lens 54 on this second side 53) of described the second side 53 in light at 52 places, described the first side.Now, the light of the different space frequency of described light source 20 images in respectively diverse location, makes the number of total imaging point equal the number of described lens 54.The light that each spherical lens 54 penetrates keep transmission line unchangeably through described the second side 53(light as shown in Figure 7 1. with light 2.), and overlapping illumination on face to be illuminated.So, the whole light transmission process of the light that described light source 20 sends is equivalent to change single source 20 illuminations into a plurality of LED light source mixed lightings, thereby be formed on, certain limit inner boundary is clear, the uniform regular hexagon illumination of color hot spot, and has improved the uniformity of illuminance of face to be illuminated.
In sum, in the LED light fixture 100 that the invention process provides, described reflector assembly 40 and lens subassembly 50 have formed the secondary light-distribution structure of this LED light fixture 100, the light that the described light source 20 of this reflector assembly 40 reflection sends, and forming parallel rays outgoing to described lens subassembly 50, light overlapping illumination on face to be illuminated that this lens subassembly 50 penetrates, has improved the uniformity of illuminance of face to be illuminated, and formed the uniform hot spot of color, met the light distribution requirements of described LED light fixture 100.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a light distribution structure, it is characterized in that, described light distribution structure comprises reflector assembly and is installed on the lens subassembly of described reflector assembly one end, described lens subassembly comprise the first side, the second side and be positioned at described the first side and described the second side on some lens, described reflector assembly adopts the one-body molded design of injection moulding die sinking, and be collimation parallel rays by the light reflection of injecting, described collimate in parallel light transmission is on some lens of described the first side, and by the some lens on described the second side so that light is carried out to luminous intensity distribution processing.
2. light distributing system according to claim 1, is characterized in that, described reflector assembly is collimating reflectors, and it is made by polycarbonate plastic or ABS plastic, and the reflecting surface of this reflector assembly is processed the light to inject by aluminizing.
3. light distributing system according to claim 1, it is characterized in that, described reflector assembly comprises the first openend and the second openend, the bore of described the first openend is less than the bore of described the second openend, described lens subassembly is positioned at described the second open end, for reflecting and reflect the light that described reflector assembly reflects and the light of directly injecting.
4. light distributing system according to claim 3, it is characterized in that, the bore of described the first openend is 8 millimeters, 28.3 millimeters of the bores of described the second openend, the height of this reflector assembly is 23 millimeters, and the inner surface integral body of this reflector assembly 40 is parabola.
5. light distributing system according to claim 1, is characterized in that, described lens subassembly integral body is cylindrical shape, and it is made by one-body molded design by optical-grade plastic or glass.
6. light distributing system according to claim 1, is characterized in that, described lens subassembly integral body is cylindrical shape, and it is made by one-body molded design by PMMA plastics, PC plastics or glass.
7. light distributing system according to claim 1, is characterized in that, described lens subassembly is any one in regular hexagon compound eye coupled lens or two-face fly-eye lens.
8. light distributing system according to claim 1, it is characterized in that, described lens are orthohexagonal spherical surface hill structure, and are arranged on described the first side and the second side according to regular hexagon, the light of injecting are formed to the regular hexagon illumination hot spot of uniform-illumination.
9. light distributing system according to claim 1, it is characterized in that, the height of described lens subassembly is 10 millimeters, the diameter of its circular cross section is 30 millimeters, the length of side that is arranged in the orthohexagonal lens on described the first side and described the second side according to regular hexagon is 1.732 millimeters, and the spherical radius of each lens is 5 millimeters.
10. a LED light fixture, comprise light source, it is characterized in that, this LED light fixture also comprises the light distribution structure described in claim 1 to 9 any one, described light source is installed on described reflector assembly with respect to the other end of described lens subassembly, and the light that this light source sends exposes to described mirror assembly and lens subassembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310110080.1A CN104075250A (en) | 2013-03-29 | 2013-03-29 | Light distribution structure and LED lamp thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310110080.1A CN104075250A (en) | 2013-03-29 | 2013-03-29 | Light distribution structure and LED lamp thereof |
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| CN201310110080.1A Pending CN104075250A (en) | 2013-03-29 | 2013-03-29 | Light distribution structure and LED lamp thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949081A (en) * | 2015-06-19 | 2015-09-30 | 苏州西默医疗科技有限公司 | Illuminating apparatus for operating microscope and illuminating method thereof |
| WO2015196670A1 (en) * | 2014-06-27 | 2015-12-30 | 欧普照明股份有限公司 | Lighting |
| CN105444117A (en) * | 2015-12-31 | 2016-03-30 | 上海澳星照明电器制造有限公司 | Hexagonal microprism and hexagonal microprism LED (light-emitting diode) traffic signal lamp optical mask |
| CN105782905A (en) * | 2016-05-05 | 2016-07-20 | 上海理工大学 | LED lens designing method capable of achieving hexagon uniform illumination |
| CN105927932A (en) * | 2016-06-03 | 2016-09-07 | 深圳市中奇创享照明科技有限公司 | Optical lens and LED lamp |
| CN106051507A (en) * | 2016-07-15 | 2016-10-26 | 横店集团得邦照明股份有限公司 | Anti-dazzle LED directional lamp based on photo-thermal integrated design and implementation method thereof |
| CN111664383A (en) * | 2019-03-09 | 2020-09-15 | 珠海和其光照明科技有限公司 | Optical system applied to large-area illumination and LED illuminating lamp thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106051507A (en) * | 2016-07-15 | 2016-10-26 | 横店集团得邦照明股份有限公司 | Anti-dazzle LED directional lamp based on photo-thermal integrated design and implementation method thereof |
| CN111664383A (en) * | 2019-03-09 | 2020-09-15 | 珠海和其光照明科技有限公司 | Optical system applied to large-area illumination and LED illuminating lamp thereof |
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Application publication date: 20141001 |